London Welsh have confirmed they will leave Oxford and return to Old Deer Park in south west London for the 2015/16 Championship season.
The Exiles will play at Old Deer Park but will continue to look at other facilities appropriate for hosting top level rugby.
London Welsh are moving after three seasons at the Kassam Stadium, including two seasons of playing in the Premiership.
London Welsh Chairman Bleddyn Phillips, said in a statement: "We have enjoyed a very exciting and challenging period in Oxford these past three years. We have had successes on and off the pitch and yet we also need to recognise that perhaps the degree of support, both in terms of ground attendance and commercial sponsorship, may not have been quite as extensive as we might have hoped or wished for.
"We believe we have made a considerable contribution to the community in Oxfordshire, both in terms of local clubs and schools, and we feel privileged and pleased to have been able to make such contributions over the past three years to these communities in Oxfordshire.
"We now look forward to the next period in the club’s history when we can build on the experiences of the past three years and take that forward with us as we return to south-west London."